Filters in interior gas - installation pipes 内部气体设施管道的过滤器
Building services piping 建筑物辅助设施管道
Standard specification for storm drain resilient connectors between reinforced concrete storm sewer structures , pipes , and laterals 加筋混凝土暴雨排水沟设施管道和横向排水沟间的排水沟回弹性连接件的标准规范
Main rehabilitation projects are technological facilities , establishments , pipelines , mud evaporation , electric system and automation apparatus . the rehabilitation project started from march 9 主要改造项目有工艺设备设施管道和工艺曝气污泥脱水电气系统和自控仪表。